Bulletin of the Geological Society of America, Volume 21

The Society, 1910 - Geology

Vols. for 1938-61 include as pt. 2 of the December issue the Society's Abstracts, later published separately.

EDMUND OTIS HOVEY Secretary	2

Session of Wednesday December 29	23

Sessions of the Paleontological Section December 29 30 and 31	31

in the rooms of the departments of Geology Mineralogy and Botany of the University	65

Proceedings of the Preliminary Meeting of the Paleontological Society held	69

Page	70

Origin of the Alkaline rocks by REGINALD A DALY	87

Evidence that the fossiliferous gravel and sand beds of Iowa and Nebraska	119

Geologic work of ants in tropical America by J C BRANNER	449

24	492

Internal characters of some Mississippian rhynchonelliform shells by STUART	497

New light on the geology of the Wasatch Mountains Utah by ELIOT BLACK	517

of the Wasatch range	534

Wasatch range Utah	534

Relations of present profiles and geologic structures in desert ranges	543

Deflation and the relative efficiences of erosional processes under conditions	565

Some mineral relations from the laboratory viewpoint by ARTHUR L DAY	141

Purpose	142

Uncertainty of solidificationundercooling	148

Preparation of pure minerals	154

Significance of equilibrium	161

Simple mixturessummary	168

Incomplete reactions	174

Bearing of the tertiary mountain belt on the origin of the earths plan	179

Isobases of the Algonquin and Iroquois beaches and their significance	227

Cacops Desmospondylus new genera of Permian vertebrates by S W WII	249

Migration and shifting of Devonian faunas by HENRY S WILLIAMS	285

Persistence of fluctuating variations as illustrated by the fossil genus rhipido	295

North American natural bridges with a discussion of their origin by HERD	313

19	319

23	322

Alaskan earthquakes of 1899 by LAWRENCE MARTIN	339

Birds Hill an esker near Winnipeg Manitoba by WARREN UPHAM	407

Relationship of Niagara River to the Glacial period by J W SPENCER	433

Relative work of the two falls of Niagara by J W SPENCER	441

Interruption in the flow of the falls of Niagara in February 1909 by J	446

Beach cusps by DOUGLAS WILSON JOHNSON	599

PRELIMINARY MEETING FOR THE ORGANIZATION OF A PALEONTOLOGICAL	608

Criteria for the recognition of the various types of sand grains by WILLIAM	625

Rock streams of Veta Peak Colorado by HORACE B PATTON	663

OrdovicicSiluric section of the Mingan and Anticosti islands Gulf of Saint	677

Some effects of glacial action in Iceland by FRED EUGENE WRIGHT	717

Tables for the determination of crystal classes by W S TANGIER SMITH	731

Additional note on the geometry of faults by HARRY FIELDING REID	737

Richmond and Great Barrington bowlder trains by F B TAYLOR	747

Abstracts of papers presented at the Twentysecond Annual Meeting of	753

Further light on the gorge of the Hudson abstract and discussion	760

Salt marsh formation near Boston and its geological significance ab	766

Some instances of flowing wells on anticlines abstract by F G CLAPP	770

66	771

Connate waters of the Atlantic coast abstract by ALFRED C LANE	774

Barite deposits of Five Islands Nova Scotia abstract by Charles	786

Proceedings of the Eleventh Annual Meeting of the Cordilleran Section of	789

POSTTERTIARY HISTORY OF THE LAKES OF ASIA MINOR AND SYRIA	799

A study of the lakes of the Anatolian plateau and of Syria was one of	816

Title	Bulletin of the Geological Society of America, Volume 21
Author	Geological Society of America
Publisher	The Society, 1910
Original from	the New York Public Library
Digitized	Jul 16, 2013

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